curl: Domainless COOKIEFILE cookie leaks to unrelated IP-literal hosts

When curl loads a cookie file written as raw HTTP Set-Cookie: header lines and a line has no Domain attribute, the cookie is stored with co-domain == NULL, because a file import has no request-host to scope it to. On the send side, Curlcookiegetlist accepts any cookie in the bucket whose domain i...

curl: libcurl cache updates follow symlinks and truncate their targets

Summary: When curl updates an HSTS, Alt-Svc, or cookie cache, it opens the supplied path with "w" before validating it, so a symlink path can truncate the file it targets. Root cause: Curlfopen calls curlxfopenfilename, "w" before checking the path or creating the safe temporary file, and fopen...

curl: Windows SSPI connection-pool probe can reuse a connection under the wrong user

Summary : A fresh transfer can reuse a keep-alive connection authenticated under another Windows user because the SSPI isolation check trusts a connection ID that a health probe can set. Root cause : Curlcpoolconnseemshealthy calls Curlattachconnection, which sets data-state.recentconnid, while...

WordPress: Author → arbitrary file deletion anywhere on disk (site takeover) via `POST /wp/v2/media/<id>/finalize` poisoning `_wp_attachment_metadata`

A vulnerability was discovered in the WordPress media processing functionality. This vulnerability allowed an authenticated author to delete arbitrary files on the server. The vulnerability was caused by insufficient input validation in the finalizeitem function, which allowed an attacker to...

WordPress: Author → stored XSS in wp-admin: unescaped sub-size filename from attachment metadata breaks out of the `src` attribute in `get_media_item()`

A vulnerability was discovered in the WordPress media upload and finalize endpoints. An author could upload a crafted image with a malicious filename, which was then stored verbatim by the endpoint and rendered without proper escaping in the WordPress admin media library. This could allow the...

Myndr: Myndr CORS Misconfiguration

The CORS configuration on admin.myndr.net allowed any .myndr.net subdomain to read authenticated admin panel responses, including CSRF nonces and session data. This vulnerability could have been exploited to take over admin accounts...

curl: URL API: triple-slash parses path segment as hostname

Summary libcurl's URL API misparses http:///host/path. Per RFC 3986, the authority between // and / is empty, so /host/path is the path. But parseurl in lib/urlapi.c treats the first segment as the hostname. On line 1087, the slash counter i reaches 3, which is within the valid 1-3 range, and hos...

curl: Cookie jar load skips public suffix check on PSL builds

On curl 8.21.0 with libpsl official curl.se 8.21.06 win64, Features: PSL, HTTP Set-Cookie: Domain=co.uk is dropped in verbose. The same cookie loaded from a Netscape jar file or a Set-Cookie: line in that file is accepted and later sent to unrelated hosts under the suffix bank.co.uk, other.co.uk...

curl: curl Missing Sec-WebSocket-Accept Verification Enables MITM WebSocket Session Hijacking

Summary curl's Curlwsaccept function in lib/ws.c processes the 101 Switching Protocols response to a client WebSocket upgrade request. RFC 6455 Section 4.1 mandates that the client MUST verify the Sec-WebSocket-Accept response header by computing the SHA-1 hash of the concatenation of the...

curl: CVE-2026-18924: HTTP/2 server push UAF

A vulnerability was discovered in libcurl versions 8.21.0 and later, where a use-after-free issue could occur in the HTTP/2 server push functionality. The vulnerability was caused by the fact that when a pushed transfer ends, the connection's pool is not properly handled, leading to the freed...

curl: Heap use-after-free (write) in mev_forget_socket() via reentrant curl_easy_pause() — incomplete fix for CVE-2026-9080

lib/multiev.c keeps a hash table multi-ev.shentries of per-socket bookkeeping structs struct mevshentry used to decide when to notify the application's socket callback CURLMOPTSOCKETFUNCTION about interest changes on a socket. CVE-2026-9080 "multi: handle pause in multi socket callback", commit...

curl: SMTP CRLF injection in custom SMTP recipient operand allows additional SMTP commands after authentication

Summary During testing of curl 8.18.0, I observed that CRLF characters embedded in the SMTP recipient operand used with a custom SMTP request are transmitted as additional SMTP commands. The injected commands are accepted and processed after successful SMTP authentication, allowing multiple SMTP...

IBM: Unauthorized vertical privilege escalation vulnerability found on ibm.com endpoint

A vertical privilege escalation vulnerability was found on an ibm.com endpoint. The vulnerability was reported to IBM, analyzed, and remediated...

8x8: @jitsi/docker-jitsi-meet: `/colibri-relay-ws/` unsafe nginx regex (OCTO relay configuration)

An unsafe nginx regex pattern was discovered in the /colibri-relay-ws/ location of the @jitsi/docker-jitsi-meet project. The regex a-zA-Z0-9-\.+ accepted arbitrary domain names and IP addresses for proxypass directives, allowing unauthenticated requests to be proxied to attacker-specified...

Weblate: SSRF via URL Parser Differential in `normalize_request_url` (wlc)

The Weblate CLI client wlc was found to be vulnerable to Server-Side Request Forgery SSRF due to a differential in URL parsing between the urllib and urllib3 libraries. The vulnerability was present in the normalizerequesturl function, which was meant to validate that outgoing API requests stayed...

Liberapay: Unauthenticated team "income/payments" export ignores donor privacy settings (hide_giving, hide_from_lists) and uses frozen visibility, exposing donat

A vulnerability was discovered in the unauthenticated team "income/payments" export feature of Liberapay. The vulnerability allowed an attacker to retrieve donor identity, exact donation amount, and donation dates for public donors, bypassing the donor's explicit privacy settings such as...

Essity: Unauthenticated SQL Injection via REST Batch Route Confusion ████████

A vulnerability was discovered in the WordPress REST API batch endpoint /wp-json/batch/v1 on a certain website. The vulnerability allowed unauthenticated blind SQL injection by nesting a crafted batch payload, which triggered a route-dispatch desynchronization. This caused a user-controlled strin...

Rocket.Chat: Stored HTML Injection (CWE-79) via Livechat Visitor Name

Vulnerability description not provided...

Weblate: **Unauthenticated IDOR allows modification of payment customer billing information**

The application contained an access control issue in the payment billing information edit functionality. An unauthenticated user was able to access the payment edit endpoint and modify the billing information associated with a payment without any authorization check. The issue occurred because th...

8x8: connect.8x8.com: Deserialization Vulnerability in Automation Builder via Jint→Newtonsoft serializer coercion (TypeNameHandling)

A deserialization vulnerability was reported in the 8x8 Connect Automation Builder's HTTP request step. The vulnerability occurred when server-side template evaluation exposed Newtonsoft JSON objects directly to the Jint JavaScript engine. By providing a specially crafted JSON response, an...